Even just looking past the bugs that almost certainly exist in the firmware, it makes these devices extremely difficult to update. Whereas on desktop, I get kernel patches expeditiously. Many Android devices are still running kernel 5, and of the ones running recent kernels, we're still waiting months for system patches.
If everyone just upstreamed their shit, then we would live in a Utopia.
For the consumer PC market, Microsoft cornered the market early on with IBM and HP with DOS. They then tried to pull the ladder and raise the gates when they went against OS/2 and Amiga. To win the Windows for Networks wars.
The only reason why majority of consumers use windows is because that’s how they want it. You can easily build a PC, no Microsoft Windows anywhere in a 1 km radius, and install Linux or BSD flavor of choice and be 90% there. Companies don’t want you to do that (i.e. Microsoft and Apple) so they preinstall the OS and it updates over the Internet whenever it wants to. Installing whatever it wants to. User choice be damned.
No, Pc’s don’t need Microsoft anymore than Rap needs p.diddy